Boolean Variable Ordering optimizations

[satune.git] / src / Backend / satencoder.h

diff --git a/src/Backend/satencoder.h b/src/Backend/satencoder.h
index dfcb8868dbbedb0ad3db22de4a1f4937f6fc194c..827a9041b059922d78607771352bf7b615cd9a34 100644 (file)
--- a/src/Backend/satencoder.h
+++ b/src/Backend/satencoder.h
@@ -6,37 +6,71 @@
 #include "inc_solver.h"
 #include "constraint.h"
 
-struct SATEncoder {
-       uint varcount;
-       CNF * cnf;
-};
+typedef Hashtable<Boolean *, Node *, uintptr_t, 4> BooleanToEdgeMap;
 
-SATEncoder * allocSATEncoder();
-void deleteSATEncoder(SATEncoder *This);
-void encodeAllSATEncoder(CSolver *csolver, SATEncoder *This);
-Edge getNewVarSATEncoder(SATEncoder *This);
-void getArrayNewVarsSATEncoder(SATEncoder* encoder, uint num, Edge*carray);
-Edge encodeConstraintSATEncoder(SATEncoder *This, Boolean *constraint);
-Edge encodeOrderSATEncoder(SATEncoder *This, BooleanOrder * constraint);
-void createAllTotalOrderConstraintsSATEncoder(SATEncoder* This, Order* order);
-Edge getOrderConstraint(HashTableOrderPair *table, OrderPair *pair);
-Edge generateTransOrderConstraintSATEncoder(SATEncoder *This, Edge constIJ, Edge constJK, Edge constIK);
-Edge encodeTotalOrderSATEncoder(SATEncoder *This, BooleanOrder * constraint);
-Edge encodePartialOrderSATEncoder(SATEncoder *This, BooleanOrder * constraint);
-Edge encodeVarSATEncoder(SATEncoder *This, BooleanVar * constraint);
-Edge encodeLogicSATEncoder(SATEncoder *This, BooleanLogic * constraint);
-Edge encodePredicateSATEncoder(SATEncoder * This, BooleanPredicate * constraint);
-Edge encodeTablePredicateSATEncoder(SATEncoder * This, BooleanPredicate * constraint);
-Edge encodeEnumTablePredicateSATEncoder(SATEncoder * This, BooleanPredicate * constraint);
-Edge encodeOperatorPredicateSATEncoder(SATEncoder * This, BooleanPredicate * constraint);
-Edge encodeEnumOperatorPredicateSATEncoder(SATEncoder * This, BooleanPredicate * constraint);
+class SATEncoder {
+public:
+       int solve(long timeout);
+       SATEncoder(CSolver *solver);
+       ~SATEncoder();
+       void resetSATEncoder();
+       void encodeAllSATEncoder(CSolver *csolver);
+       Edge encodeConstraintSATEncoder(BooleanEdge constraint);
+       CNF *getCNF() { return cnf;}
+       long long getSolveTime() { return cnf->solveTime; }
+       long long getEncodeTime() { return cnf->encodeTime; }
 
-Edge getElementValueBinaryIndexConstraint(SATEncoder * This, Element* element, uint64_t value);
-Edge getElementValueConstraint(SATEncoder* encoder, Element* This, uint64_t value);
+       CMEMALLOC;
+private:
+       void shouldMemoize(Element *elem, uint64_t val, bool &memo);
+       Edge getNewVarSATEncoder();
+       void getArrayNewVarsSATEncoder(uint num, Edge *carray);
+       Edge encodeVarSATEncoder(BooleanVar *constraint);
+       Edge encodeLogicSATEncoder(BooleanLogic *constraint);
+       Edge encodePredicateSATEncoder(BooleanPredicate *constraint);
+       Edge encodeTablePredicateSATEncoder(BooleanPredicate *constraint);
+       void encodeElementSATEncoder(Element *element);
+       void encodeElementFunctionSATEncoder(ElementFunction *function);
+       void encodeTableElementFunctionSATEncoder(ElementFunction *This);
+       Edge getElementValueOneHotConstraint(Element *elem, Polarity p, uint64_t value);
+       Edge getElementValueUnaryConstraint(Element *elem, Polarity p, uint64_t value);
+       Edge getElementValueBinaryIndexConstraint(Element *element, Polarity p, uint64_t value);
+       Edge getElementValueBinaryValueConstraint(Element *element, Polarity p, uint64_t value);
+       Edge getElementValueConstraint(Element *element, Polarity p, uint64_t value);
+       void generateOneHotEncodingVars(ElementEncoding *encoding);
+       void generateUnaryEncodingVars(ElementEncoding *encoding);
+       void generateBinaryIndexEncodingVars(ElementEncoding *encoding);
+       void generateBinaryValueEncodingVars(ElementEncoding *encoding);
+       void generateElementEncoding(Element *element);
+       Edge encodeOperatorPredicateSATEncoder(BooleanPredicate *constraint);
+       Edge encodeEnumOperatorPredicateSATEncoder(BooleanPredicate *constraint);
+       Edge encodeEnumEqualsPredicateSATEncoder(BooleanPredicate *constraint);
+       void encodeOperatorElementFunctionSATEncoder(ElementFunction *This);
+       Edge encodeCircuitOperatorPredicateEncoder(BooleanPredicate *constraint);
+       Edge encodeOrderSATEncoder(BooleanOrder *constraint);
+       Edge inferOrderConstraintFromGraph(Order *order, uint64_t _first, uint64_t _second);
+       Edge getPairConstraint(Order *order, OrderPair *pair);
+       Edge getPartialPairConstraint(Order *order, OrderPair *pair);
+       Edge encodeTotalOrderSATEncoder(BooleanOrder *constraint);
+       Edge encodePartialOrderSATEncoder(BooleanOrder *constraint);
+       void createAllTotalOrderConstraintsSATEncoder(Order *order);
+       void createAllPartialOrderConstraintsSATEncoder(Order *order);
+       Edge getOrderConstraint(HashtableOrderPair *table, OrderPair *pair);
+       Edge generateTransOrderConstraintSATEncoder(Edge constIJ, Edge constJK, Edge constIK);
+       Edge generatePartialOrderConstraintsSATEncoder(Edge ij,Edge ji, Edge jk, Edge kj,Edge ik, Edge ki);
+       Edge encodeEnumEntriesTablePredicateSATEncoder(BooleanPredicate *constraint);
+       Edge encodeEnumTablePredicateSATEncoder(BooleanPredicate *constraint);
+       void encodeEnumTableElemFunctionSATEncoder(ElementFunction *This);
+       void encodeEnumEntriesTableElemFuncSATEncoder(ElementFunction *This);
+       void generateAnyValueBinaryIndexEncoding(ElementEncoding *encoding);
+       void generateAnyValueBinaryIndexEncodingPositive(ElementEncoding *encoding);
+       void generateAnyValueBinaryValueEncoding(ElementEncoding *encoding);
+       CNF *cnf;
+       CSolver *solver;
+       BooleanToEdgeMap booledgeMap;
+       VectorEdge *vector;
+        friend class VarOrderingOpt;
+};
 
-void encodeElementSATEncoder(SATEncoder* encoder, Element *This);
-Edge encodeElementFunctionSATEncoder(SATEncoder* encoder, ElementFunction *This);
-Edge encodeEnumTableElemFunctionSATEncoder(SATEncoder* encoder, ElementFunction* This);
-Edge encodeTableElementFunctionSATEncoder(SATEncoder* encoder, ElementFunction* This);
-Edge encodeOperatorElementFunctionSATEncoder(SATEncoder* encoder,ElementFunction* This);
+void allocElementConstraintVariables(ElementEncoding *ee, uint numVars);
 #endif